# *-*- coding:utf-8 -*-
# @Author  : Eliza
# @Time    : 2021/7/18 18:27
# @Software : RubyMine

=begin
###search and filter ###:any?
  :all?
  :detect (alias :find)#别名
  :drop
  :find_all
  : find_index
  :include?
  :none?
  :one?
  :reject
  :select
###grouping###:chunk
  :group_by
  :partition
###iterate###
  :cycle
  :each
  :each_slice
  :each_with_index: reverse_each
###iterate and create new collection
  :each_with_object
  :flat_map
  :map
  :inject
  :sort
  :zip
##stats ##

  :count
  :max,
  :max_by
  :min,
  :min_by
  :minmax,
  :minmax_by
### efficiency ###
  :lazy,

=end
